n | a(n) |
---|---|
0 | 0 |
1 | 3 |
2 | 75 |
3 | 804 |
4 | 5988 |
5 | 36363 |
6 | 193827 |
7 | 943968 |
8 | 4303200 |
9 | 18652107 |
10 | 77701107 |
11 | 313483764 |
12 | 1231813812 |
13 | 4734541443 |
14 | 17859008379 |
15 | 66286569504 |
16 | 242605938720 |
17 | 877071559539 |
18 | 3136507851387 |
19 | 11108459253540 |
20 | 39002734461540 |
21 | 135876065474523 |
22 | 470021588191155 |
23 | 1615461644979264 |
[0,3,75,804,5988,36363,193827,943968,4303200, 18652107,77701107,313483764,1231813812,4734541443, 17859008379,66286569504,242605938720,877071559539, 3136507851387,11108459253540,39002734461540, 135876065474523,470021588191155,1615461644979264] |